diff options
Diffstat (limited to 'arch/blackfin/kernel/sys_bfin.c')
| -rw-r--r-- | arch/blackfin/kernel/sys_bfin.c | 74 |
1 files changed, 15 insertions, 59 deletions
diff --git a/arch/blackfin/kernel/sys_bfin.c b/arch/blackfin/kernel/sys_bfin.c index 3da60fb13ce4..2e7f8e10bf87 100644 --- a/arch/blackfin/kernel/sys_bfin.c +++ b/arch/blackfin/kernel/sys_bfin.c @@ -1,32 +1,10 @@ /* - * File: arch/blackfin/kernel/sys_bfin.c - * Based on: - * Author: + * contains various random system calls that have a non-standard + * calling sequence on the Linux/Blackfin platform. * - * Created: - * Description: This file contains various random system calls that - * have a non-standard calling sequence on the Linux/bfin - * platform. + * Copyright 2004-2009 Analog Devices Inc. * - * Modified: - * Copyright 2004-2006 Analog Devices Inc. - * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * Licensed under the GPL-2 or later */ #include <linux/spinlock.h> @@ -44,39 +22,6 @@ #include <asm/cacheflush.h> #include <asm/dma.h> -/* common code for old and new mmaps */ -static inline long -do_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - int error = -EBADF; - struct file *file = NULL; - - flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE); - if (!(flags & MAP_ANONYMOUS)) { - file = fget(fd); - if (!file) - goto out; - } - - down_write(¤t->mm->mmap_sem); - error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff); - up_write(¤t->mm->mmap_sem); - - if (file) - fput(file); - out: - return error; -} - -asmlinkage long sys_mmap2(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long pgoff) -{ - return do_mmap2(addr, len, prot, flags, fd, pgoff); -} - asmlinkage void *sys_sram_alloc(size_t size, unsigned long flags) { return sram_alloc_with_lsl(size, flags); @@ -91,3 +36,14 @@ asmlinkage void *sys_dma_memcpy(void *dest, const void *src, size_t len) { return safe_dma_memcpy(dest, src, len); } + +#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE) +#include <linux/fb.h> +unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, + unsigned long len, unsigned long pgoff, unsigned long flags) +{ + struct fb_info *info = filp->private_data; + return (unsigned long)info->screen_base; +} +EXPORT_SYMBOL(get_fb_unmapped_area); +#endif |